$399 Find Cheap Flights from Boston to Istanbul

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Istanbul departing on 9/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Istanbul

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Istanbul.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Istanbul.
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Flight Deals

Cheap Flights from Boston to Istanbul (BOS-IST)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boston to Istanbul that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boston to Istanbul

Wed, Oct 22 - Mon, Nov 3
 Logo
11:00 pm - 10:05 pmBOS-SAW
40h 05m2 stops
 Logo
1:05 pm - 8:55 pmSAW-BOS
15h 50m1 stop
Tue, Oct 14 - Tue, Oct 28
Air France Logo
10:20 pm - 3:25 amBOS-IST
22h 05m1 stop
Air France Logo
4:50 am - 1:30 pmIST-BOS
15h 40m2 stops
$645Air France
Find Deal
Sat, Nov 8 - Wed, Nov 19
Turkish Airlines Logo
8:00 pm - 1:25 pmBOS-IST
9h 25mnonstop
Turkish Airlines Logo
3:35 pm - 6:05 pmIST-BOS
10h 30mnonstop
$648Turkish Airlines
Find Deal
Thu, Nov 6 - Sun, Nov 9
KLM Logo
6:30 pm - 4:55 pmBOS-IST
14h 25m2 stops
KLM Logo
5:55 pm - 1:20 pmIST-BOS
27h 25m1 stop
$649KLM
Find Deal
Tue, Oct 28 - Tue, Nov 4
Delta Logo
9:30 pm - 3:50 amBOS-IST
23h 20m1 stop
Delta Logo
5:55 pm - 1:20 pmIST-BOS
27h 25m1 stop
$650Delta
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Tue, Oct 28 - Mon, Nov 3
Delta Logo
12:10 pm - 4:55 pmBOS-IST
21h 45m2 stops
Delta Logo
4:50 am - 8:10 pmIST-BOS
23h 20m2 stops
$651Delta
Find Deal
Sat, Nov 8 - Wed, Nov 19
Turkish Airlines Logo
8:00 pm - 1:25 pmBOS-IST
9h 25mnonstop
Turkish Airlines Logo
3:35 pm - 6:05 pmIST-BOS
10h 30mnonstop
$652Turkish Airlines
Find Deal
Wed, Nov 26 - Tue, Dec 2
Lufthansa Logo
8:40 pm - 6:05 pmBOS-IST
13h 25m2 stops
Lufthansa Logo
6:30 am - 1:25 pmIST-BOS
14h 55m1 stop
$662Lufthansa
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Thu, Oct 16 - Tue, Oct 28
KLM Logo
10:20 pm - 3:25 amBOS-IST
22h 05m1 stop
KLM Logo
5:55 pm - 7:55 pmIST-BOS
33h 00m1 stop
$663KLM
Find Deal
Sun, Oct 12 - Tue, Nov 4
Lufthansa Logo
5:50 pm - 1:05 pmBOS-IST
12h 15m1 stop
Lufthansa Logo
7:00 pm - 1:25 pmIST-BOS
26h 25m1 stop
$672Lufthansa
Find Deal

Everything you should know

Top airlines
Air France
Cheapest • from $645 (round-trip)
KLM
Best reviews • 7.8 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
BOS-IST
Cheapest
BOS-IST
Most popular
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 20% compared to booking last minute.
Insights
Insights
Insights
Insights
Cheapest round-trip
$645
Typical prices: $713-944
Multiple Airlines
Wed 10/22Mon 11/3
BOS - SAW • 2 stops
Cheapest non-stop
$648
Typical prices: $774-1007
Turkish Airlines
Sat 11/8Wed 11/19
BOS - IST • Non-stop
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We hope you love your trip to Istanbul!
Booking Insights

KAYAK's insights & trends for Boston to Istanbul flights

Get data-powered insights and trends into flights from Boston to Istanbul to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Boston to Istanbul flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Boston to Istanbul costs $582 on the route between Boston (BOS) and Istanbul Airport (IST). It is also the most popular route.

What’s the cheapest day of the week to fly from Boston to Istanbul?

The average price of all round-trip flights from Boston to Istanbul clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Boston to Istanbul, look for departures on Tuesdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Istanbul, Tuesday is the cheapest day to fly and Friday is the most expensive.

What is the cheapest month to fly from Boston to Istanbul?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston to Istanbul, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boston to Istanbul is October, where tickets cost $760 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $1,219 and $1,073 respectively.

How far in advance should I book a flight from Boston to Istanbul?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boston to Istanbul, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boston to Istanbul, you should book around 3 weeks before departure, which saves you about 20% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Cheapest flight$399
Flight from Boston to Istanbul Airport

When to book flights from Boston to Istanbul

Are your dates flexible? Find out the best times to travel from Boston to Istanbul based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boston to Istanbul

  • What is the cheapest flight from Boston to Istanbul?

    In the last 3 days, the lowest price for a flight from Boston to Istanbul was $399 for a one-way ticket and $645 for a round-trip.

  • Do I need a passport to fly between Boston and Istanbul?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Boston and on arrival in Istanbul.

  • Which airports will I be using when flying from Boston to Istanbul?

    On your way to Istanbul, you’ll fly out from Boston Logan Intl. You’ll be landing in one of Istanbul’s 2 airports: Istanbul or Istanbul Sabiha Gokcen.

  • Which aircraft models fly most regularly from Boston to Istanbul?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boston to Istanbul?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Boston and Istanbul, with SkyTeam being the most commonly used for this route.

  • What is the most popular layover when flying to Istanbul from Boston?

    London is the most popular layover city among KAYAK users traveling from Boston to Istanbul.

  • How does KAYAK find such low prices on flights from Boston to Istanbul?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boston to Istanbul.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boston to Istanbul?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Istanbul from Boston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boston to Istanbul?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Istanbul with an airline and back to Boston with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boston to Istanbul?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Istanbul from Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Boston to Istanbul?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Boston Logan Intl to Istanbul.
Find which airlines fly direct from Boston Logan Intl Airport to Istanbul, which days they fly and book direct flights.

Direct departures

Boston Logan Intl to Istanbul

Monday

Turkish Airlines

Turkish Airlines

Tuesday

Turkish Airlines

Turkish Airlines

Wednesday

Turkish Airlines

Turkish Airlines

Thursday

Turkish Airlines

Turkish Airlines

Friday

Turkish Airlines

Turkish Airlines

Saturday

Turkish Airlines

Turkish Airlines

Sunday

Turkish Airlines

Turkish Airlines

See more direct flights

Direct returns

Istanbul to Boston Logan Intl

Monday

Turkish Airlines

Turkish Airlines

Tuesday

Turkish Airlines

Turkish Airlines

Wednesday

Turkish Airlines

Turkish Airlines

Thursday

Turkish Airlines

Turkish Airlines

Friday

Turkish Airlines

Turkish Airlines

Saturday

Turkish Airlines

Turkish Airlines

Sunday

Turkish Airlines

Turkish Airlines

See more direct flights

Reviews of the top 5 airlines serving from Boston to Istanbul

 
See real verified KAYAK customer reviews for airlines flying from Boston to Istanbul. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boston to Istanbul? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.8
KLMOverall score based on 1385 reviews
8.4Crew
7.2Entertainment
7.8Boarding
7.7Comfort
7.3Food
Airline reviews

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

2.0 MediocrePeter, Aug 2025SAN - AMS
Read more KLM reviews

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

Our first flight was delayed so we missed our connecting flight. However it was easy to book a later flight on their app.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Klm start boarding while somw air issue in the plan

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

Rude staff. I would avoid using the word racist but definitely partially or discriminatory. My 72 yrs old mother who is also disabled was traveling on this flight. She was the second passenger boarded to the plane. The First elderly couple ahead of my mother were allowed to use the airplane bathroom but my mother was denied entry stating it was for safety reasons. My mother objected the the couple in front of her were allowed but hostess still stated that due to the flight safety reasons she can’t use it. Even my mother explained that he is using blood pressure medication that’s why she have to use the restroom frequently but the crew continued arguing her. At one point the Mae attendent even suggested that if that’s the case my mother can urinate in her seat. The level of disrespect against an elderly lady is beyond my comprehension. This matter will be taken to the social media to shame the employees involved.

my experience was great with Turkish airlines . the problem i encountered was with kayak booking. When I booked . it showed that im allowed a bag . and when I got to the airport, i had to pay $165 for one bag.

Not up to Business Class standards. Two of the three toilets were out of order. The hostesses were aware and didn’t show any responsible act to do something. Food quality was not what we expect from Turkish hospitality. Overall we were not impressed and disappointed.

During mid flight, try to get a flight attendant to help I couldn’t find one Otherwise, everything was perfect

I was not given basinett seat.The connecting flight was missed due to airline fault i was not accomodated for hotel.Drinks were normt served frewuently.Never travelling again on tirkish airlines.I always travel wiyh family by turkish airline but no more.zero stars

The crew were very hospitable and pleasant. The food was pretty good. Unfortunately, there was a flight delay of more than 2 hours. We're not sure why but it appeared to be outside the control of Turkish Airlines.

Bough tickets with luggage, but made me pay at Airport as well

The economy seat was so uncomfortable, had not enough leg room for 13 hours flight, front seat basket was broken and couldn’t hold anything, food quality was horrible( we got food poisoned ) we charged for logged which used to be free. We paid too much for this flight and very disappointed. Turkish air line better to make satisfy and respect people instead of find different way to scam people.

The 2 agents on the check in counter were super nice , helpful and very polite. Boarding was like a 1 2 3, I would recommend Turkish airlines for your next trip.

flight with heavy turbulence old boeing 777 rest wasnt clean dashboard doesn’t work

very difficult boarding process - aggressive passengers not the friendliest crew

WiFi was not eorkig (again) And the plane was from 1990 with the screens which were.not touch and most didn’t even work and if lucky could tune in tv

I paid extra for a seat closer to the front. The TV didn’t work at all for the entire flight. Would have been nice to know before I purchased an “upgraded “ seat

It was great. I had never flown on JetBlue before, but would be very happy to fly with them in the future.

Worst flight experience ever flights canceled. JetBlue told us just did not even bother standing in line to come back in one and a half hours then without any information we had to go pick up all of our luggage and spend over $2000 in accommodation just to get home. JetBlue said that the next flight available for us to get home would be three days later. Absolutely absurd hasn’t offered to give us any compensation do not fly JetBlue horrible company. They said it was based on the weather and the weather is great in all locations that we would’ve been flying to total hoax. I think it’s a conspiracy theory.

The captain gave good announcements and the flight attendants were friendly. The WiFi was pretty good. The plane itself looked very old inside and the seats were very uncomfortable. The screens in the seat backs were the smallest I’ve ever seen. There were so many loud and obnoxious kids on this flight and the parents didn’t do much to try to quiet them down. Some had videos and games on tablets with higher than necessary volume going the whole time.

Too many long delays with JetBlue. Worst major airline that serves JFK but unfortunately I keep going back because of the prices.

My JetBlue experience was nice. The flights ran on time, the aircraft was clean and comfortable, and the flight attendants were attentive. My only issue, which is isolated to the low-cost (budget) option at JetBlue, is that the check in process makes the user feel that they have to buy their seats. The seats offered for purchase are upgrades from the budget seats you get (which are essentially the last seats remaining). The interface should not make it feel like you must purchase a seat.

The plane was late to leave.. Internet was lousy. TV was not working. when we arrived, We stayed on the plane for a long time before we got to the gate. It took us a long time to retrieve our luggage because they didn’t know what carousel to send them to. It was a bad experience.

I especially liked the lead crew officer. His boarding and safety announcements were made with a bit of novelty and humor. The flight also left the gate 10 minutes early and we landed about 20 minutes early… It was a delightful flight…

I liked Quiet people around me. Crew could have helped people with overhead luggage so they aren't moving other peoples bags around and causing problems for people that had there bags there first

The flight and crew were good. The customer experience on the ground could have been better. We had to reschedule our flight because of a delay on the previous flight. The attendants working the desk in Washington DC were not helpful. They told us to scan a QR code and that would get us rebooked. Why couldn't two people standing at their computers do this? We had to chat with someone to get everything figured out. It was extremely confusing.

The plane was delayed by two hours in Chicago which led to us missing the next flight. Lufthansa rebooked the flight and booked us a hotel for the night in Frankfurt. The level of customer service and getting us taken care of was superb. The flight crew and the service on the ground was superb.

It was a short flight, everything was good with it.

Flight was delayed over one hour and I had to pay to select my seat, even though my booking supposedly had free selection (I paid extra for this at time of booking)

Stop charging for alcohol overseas flights and start taking cash again not everyone wants to pay with card if the person is bigger give him seat on the outside seats not the middle in between the people is common sense and mainly if you fly for Lufthansa provides the sam service and experience...

good entertainment package but rather small seats for business class

The male attendant has zero personality. It seemed like he was over worked or hated his job, not once did he smile or made any contact with the people on the plane. Strictly business and call it a day!

Booked Economy but it translated to economy light for Lufthansa so now we are stuck paying an extra $75 per person both ways for our checked bags. If I had known that, I would have never booked these tickets because it came out to be more than other options. The booking in the kayak side clearly says Economy and has a link to the inormation for Lufthansa which states Economy included a checked bag. Super annoyed about that.

The flight from Dulles to Munich was just okay. The seats were comfortable and extra foot room was noticeable in comfort plus. Disappointed in the booking in so much I requested an aisle seat and then was assigned a middle seat. The food was inedible. Movie choices were moderate. I usually fly Delta, but this WA flight was cheaper. Next time, I'll happily pay the extra to fly Delta.

The seating has become ridiculous… like a contest to see how narrow and short they can be made- forcing anyone over 5’1 to pay more to not be twisting oneself into a pretzel. Really insane- would have thought BA was better than this. Frankly- it cancels out a lot of the positive aspects.

flight was delayed from BWI to London - missed my connecting flight & then connecting flight (also British Air) was delayed - food is awful, TV & movie selection is great

Three major things that led to my low rating, 1. Internet wasn't available for the whole time, and 2. TV became available way into flight, after numerous system reboots, and 3. Food is not good at all.

Super tight economy class. My knees were hitting the back of seat in front of me (I'm only 5'6"). My small backpack (sized according to their required dimensions) would not fit under the seat in front of me because there is a box (is that the life jacket?) in the way. Over all, extremely uncomfortable. I forgive the tasteless food, but the tight seating was torture

Didn’t fly with them as someone had cancelled my flight

Some how my flight was canceled, neither BA or Justfly.com accepted responsibility. I only found out about this the day before when I tried to check in. I had to book another flight which due to the time ( day before) cost me $300 more. I was still receiving notifications about the flight even when I was on another flight from you. So no my flight to London was not good.

Online check-in 24 hours in advance something seems not so easy to check in to pick seats and to print a boarding pass

I like the crew, very welcoming. Food can be better. The seat arms don’t go up so. I could use the empty seat next to mine to relax better. 3hrs delay 😠

Boarding was efficient and quick, crew was very attentive, seats were comfortable.

Everything was very good! I personally struggled with the heat in the cabin for the first 2 hours

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